There are 721 thirteen-letter words containing 2A, P and S, https://www.bestwordlist.com/c/a/4/13letterwordswithaaps.htm ABYSSOPELAGIC ACCOMPANYISTS ACHROMATOPSIA ADAPTABLENESS ADAPTATIONIST ADAPTEDNESSES ADIAPHORISTIC AEROPLANKTONS AGAMOSPERMIES AICHMOPHOBIAS AILUROPHILIAS AILUROPHOBIAS ALDERMANSHIPS ALEXIPHARMICS ALLELOPATHIES ALPHABETISERS ALPHABETISING ALPHABETIZERS ALPHANUMERICS AMPHIBLASTULA AMPHIGASTRIUM AMPHISTOMATAL AMPHISTOMATIC AMPHITHEATERS AMPHITHEATRES ANALPHABETICS ANALPHABETISM ANAPHRODISIAC ANAPHRODISIAS ANEMOGRAPHIES ANENCEPHALIAS ANENCEPHALIES ANGELOPHANIES ANGIOGRAPHIES ANGIOPLASTIES ANGLOPHOBIACS ANISOMETROPIA ANTICIPATIONS ANTIPARALLELS ANTIPARASITIC ANTIPARTICLES ANTIPHONARIES ANTIPLATELETS ANTISPASMODIC AORTOGRAPHIES APATOSAURUSES APHANIPTEROUS APHRODISIACAL APLANOGAMETES APOCALYPTISMS APOCALYPTISTS APOCATASTASES APOCATASTASIS APOCHROMATISM APOSTOLICALLY APOTHEGMATISE APOTHEGMATIST APPEALINGNESS APPOGGIATURAS APPRAISEMENTS APPRECIATIONS APPROPRIACIES APPROPRIATORS APPURTENANCES ARACHNOPHOBES ARCHIPELAGOES ARPEGGIATIONS ARSPHENAMINES ARTHROPATHIES ASPARAGINASES ASPHYXIATIONS ASSISTANTSHIP ASSOCIATESHIP ASTRAPOPHOBIA ASTROPHYSICAL ATMOSPHERICAL ATYPICALITIES AUTOCEPHALIES AUTOCEPHALOUS AZATHIOPRINES BACKSLAPPINGS BANDSPREADING BIPARTISANISM BLEPHAROPLAST BLEPHAROSPASM BRACHYCEPHALS CAESAROPAPISM CALLIGRAPHERS CALLIGRAPHIES CALLIGRAPHIST CAMERAPERSONS CAMPANOLOGERS CAMPANOLOGIES CAMPANOLOGIST CAMPHORACEOUS CANCERPHOBIAS CANDIDATESHIP CAPABLENESSES CAPACIOUSNESS CAPACITATIONS CAPERCAILLIES CAPERCAILZIES CAPILLARITIES CAPITULATIONS CAPNOGRAPHIES CARDINALSHIPS CARDIOPATHIES CARDIOPLEGIAS CARDSHARPINGS CARPETBAGGERS CARTOGRAPHERS CARTOGRAPHIES CATASTROPHISM CATASTROPHIST CATHODOGRAPHS CEPHALISATION CEPHALOPODANS CERAUNOGRAPHS CHAIRMANSHIPS CHAPLAINSHIPS CHLOROPLASTAL CHROMATOPSIAS CLAMJAMPHRIES CLAPPERBOARDS CLEPTOMANIACS COADAPTATIONS COMPANIONWAYS COMPARATIVIST COMPASSIONATE COMPLAISANCES COMPLAISANTLY COMPLANATIONS COPARCENARIES COPLANARITIES CRAFTMANSHIPS CRAFTSMANSHIP CRAPEHANGINGS CRYPTANALYSES CRYPTANALYSIS CRYPTANALYSTS DEASPIRATIONS DECAPITALISED DECAPITALISES DECAPITALIZES DECAPITATIONS DECAPSULATING DECAPSULATION DERMAPLANINGS DERMATOPLASTY DEUTERANOPIAS DIALYPETALOUS DIAPHANEITIES DIAPHRAGMITIS DILAPIDATIONS DIPSOMANIACAL DISAPPARELLED DISAPPEARANCE DISCAPACITATE DISPARAGEMENT DISPARAGINGLY DISPARATENESS DISPASSIONATE DISPLANTATION DISPLEASANCES DISPLEASANTED DRAFTSMANSHIP DRAPABILITIES ECTOPARASITES ECTOPARASITIC ELEPHANTIASES ELEPHANTIASIC ELEPHANTIASIS EMANCIPATIONS ENCAPSULATING ENCAPSULATION ENDOPARASITES ENDOPARASITIC ENHYPOSTASIAS EPANADIPLOSES EPANADIPLOSIS EPIGRAMMATISE EPIGRAMMATISM EPIGRAMMATIST EPINASTICALLY EPISCOPALIANS EPISTOLARIANS EPITHALAMIUMS EQUIPARATIONS ERGASTOPLASMS EUPHAUSIACEAN EUSPORANGIATE EVAPOROGRAPHS EXASPERATEDLY EXASPERATIONS EXOPHTHALMIAS EXPATRIATIONS EXPATRIATISMS EXPLANTATIONS EXTRAPOLATORS FLANNELGRAPHS FLUORAPATITES FRANCOPHOBIAS GALVANOPLASTY GALVANOSCOPES GALVANOSCOPIC GAMESMANSHIPS GLADIATORSHIP GLASSPAPERING GRADUATESHIPS GRANTSMANSHIP GRAPHICALNESS GRAPHITISABLE GRAPHOPHOBIAS GUARDIANSHIPS HAEMOPHILIACS HAGIOGRAPHERS HAGIOGRAPHIES HAGIOGRAPHIST HALIPLANKTONS HAPHAZARDNESS HAPHAZARDRIES HAPLOGRAPHIES HAPPENCHANCES HAPPENSTANCES HARMONOGRAPHS HARUSPICATING HARUSPICATION HEMATOPHAGOUS HEMIPARASITES HEMIPARASITIC HEPATISATIONS HEPATIZATIONS HEPTASYLLABIC HERPETOFAUNAS HETEROPLASIAS HOLOPARASITES HOLOPARASITIC HYDNOCARPATES HYPAESTHESIAS HYPERALGESIAS HYPERAROUSALS HYPERPARASITE HYPERSARCOMAS HYPNOANALYSES HYPNOANALYSIS HYPOCALCEMIAS HYPONATREMIAS HYPOSPADIASES IAMBOGRAPHERS IDIOPLASMATIC IMPARTIALNESS IMPASSABILITY IMPLANTATIONS INADAPTATIONS INCAPABLENESS INCAPACITANTS INCAPACITATES INCAPSULATING INCAPSULATION INSPIRATIONAL INTERSCAPULAR INTRACAPSULAR INTRAPERSONAL IPSILATERALLY JAPONAISERIES KARYOMAPPINGS KERATOPLASTIC KERAUNOGRAPHS KLEPTOMANIACS LALLAPALOOZAS LAPAROSCOPIES LAPAROSCOPIST LARYNGOSPASMS LAUREATESHIPS LIBRARIANSHIP LITHOLAPAXIES LOLLAPALOOSAS LOLLAPALOOZAS LYMPHANGIOMAS LYMPHOSARCOMA MAGNETOGRAPHS MAGNETOPAUSES MALABSORPTION MALACOPHILIES MALACOPHILOUS MAMMAPLASTIES MAMMOGRAPHIES MAMMOPLASTIES MANIPULATIONS MANIPULATIVES MANSPLAININGS MANSPREADINGS MARCONIGRAPHS MARIMBAPHONES MARKSMANSHIPS MARSIPOBRANCH MARSUPIALIANS MASTIGOPHORAN MAXIMAPHILIES MEGACEPHALIES MEGACEPHALOUS MEGASPORANGIA MESATICEPHALY METAPHOSPHATE METAPHYSICIAN METAPSYCHICAL MICROPARASITE MISAPPRAISALS MISAPPRECIATE NANOPARTICLES NANOPLANKTONS NAPHTHALISING NASOPHARYNGES NASOPHARYNXES NATUROPATHIES NEOCAPITALISM NEOCAPITALIST NEOPAGANISING NONCAPITALIST NONDIAPAUSING NYMPHAEACEOUS NYMPHOMANIACS ONOMATOPOEIAS OPISTHOSOMATA PACIFICATIONS PACKABILITIES PAEDOBAPTISMS PAEDOBAPTISTS PAEDOPHILIACS PAGANISATIONS PAGANIZATIONS PAINSTAKINGLY PAINTBALLINGS PALAEOCRYSTIC PALATABLENESS PALEOBOTANIES PALEOBOTANIST PALEOGRAPHERS PALEOGRAPHIES PALIFICATIONS PALINGENESIAS PALLETISATION PALPABILITIES PALUDAMENTUMS PANAESTHESIAS PANAESTHETISM PANCHROMATISM PANCYTOPENIAS PANDAEMONIUMS PANGRAMMATIST PANIFICATIONS PANPHARMACONS PANSEXUALISMS PANSEXUALISTS PANSOPHICALLY PANSPERMATISM PANSPERMATIST PANTHEISTICAL PANTISOCRATIC PANTOGRAPHERS PANTOGRAPHIES PANTOPHAGISTS PANTOTHENATES PAPAPRELATIST PAPAVERACEOUS PAPERHANGINGS PAPILLOMATOUS PAPOVAVIRUSES PARABOLANUSES PARACHRONISMS PARACYANOGENS PARADOXURINES PARAESTHESIAS PARAGNATHISMS PARAGRAPHISTS PARAHYDROGENS PARALANGUAGES PARALLELISING PARALLELISTIC PARALYSATIONS PARALYZATIONS PARAMAGNETISM PARAMENSTRUUM PARAMETERISED PARAMETERISES PARAMETERIZES PARAMETRISING PARAMORPHINES PARAMORPHISMS PARAMOUNTCIES PARAMYXOVIRUS PARANEPHROSES PARAPHRASABLE PARAPOPHYSIAL PARAPSYCHICAL PARAPSYCHISMS PARAPSYCHOSES PARAPSYCHOSIS PARAQUADRATES PARARESCUEMAN PARARESCUEMEN PARASCENDINGS PARASEXUALITY PARASITAEMIAS PARASITICALLY PARASITICIDAL PARASITICIDES PARASITOLOGIC PARASPHENOIDS PARASYMBIONTS PARASYMBIOSES PARASYMBIOSIS PARASYMBIOTIC PARASYNTHESES PARASYNTHESIS PARASYNTHETIC PARASYNTHETON PARATHORMONES PARFOCALISING PARFOCALITIES PARKINSONIANS PAROCCIPITALS PAROCHIALISED PAROCHIALISES PAROCHIALISMS PAROCHIALIZES PARTIALNESSES PARTICIPATORS PARTICULARISE PARTICULARISM PARTICULARIST PARTISANSHIPS PARTIZANSHIPS PARVANIMITIES PASIGRAPHICAL PASSEMEASURES PATERFAMILIAS PATERNALISTIC PATHOGRAPHIES PATRIARCHATES PATRIARCHISMS PATRILINEAGES PATRISTICALLY PATRONISATION PAUPERISATION PEACEABLENESS PEDIATRICIANS PEIRASTICALLY PENALISATIONS PENALIZATIONS PENTADACTYLES PENTAHYDRATES PENTASYLLABIC PENTAVALENCES PERAMBULATORS PERMANGANATES PHAEOMELANINS PHALANSTERIAN PHALANSTERIES PHALANSTERISM PHALANSTERIST PHANEROGAMOUS PHANTASMAGORY PHANTASMALIAN PHANTASMALITY PHARISAICALLY PHARMACEUTICS PHARMACEUTIST PHARMACOGNOSY PHARMACOPEIAS PHENARSAZINES PHENYLALANINS PHONASTHENIAS PHOSPHATURIAS PHRAGMOPLASTS PHRASEMAKINGS PHRASEOGRAPHS PHRASEOGRAPHY PHYSHARMONICA PHYTOSANITARY PIACULARITIES PIANISTICALLY PISCATORIALLY PLACABILITIES PLACENTATIONS PLAGIOCLASTIC PLANETESIMALS PLANIGRAPHIES PLANOGRAPHIES PLANTOCRACIES PLASMODESMATA PLASTERBOARDS PLASTINATIONS PLASTOCYANINS PLATINISATION PLAYABILITIES PLESIOSAURIAN PLURALISATION POLARISATIONS POLARIZATIONS POLLYANNAISMS POLYGALACEOUS POLYTHALAMOUS POSTAPARTHEID POSTCLASSICAL POSTCRANIALLY POSTGRADUATES POSTINAUGURAL POSTLAPSARIAN POSTTRAUMATIC POSTULATIONAL POTICHOMANIAS PRACTICALISMS PRACTICALISTS PRACTICALNESS PRAEDIALITIES PRAGMATICISMS PRAGMATICISTS PREASSURANCES PRECAPITALIST PRECLEARANCES PREECLAMPSIAS PREFABRICATES PRELAPSARIANS PREMENOPAUSAL PREREHEARSALS PREVARICATORS PRIMIGRAVIDAS PRISMATICALLY PRIVATEERSMAN PRIVATISATION PROCAPITALIST PROCARBAZINES PROCATHEDRALS PROCELLARIANS PROCLAMATIONS PROCRASTINATE PROGRADATIONS PROGRAMMABLES PROLETARIATES PROPAGANDISED PROPAGANDISER PROPAGANDISES PROPAGANDISMS PROPAGANDISTS PROPAGANDIZES PROSAICALNESS PROSENCEPHALA PROSENCHYMATA PROSOPAGNOSIA PROSTAGLANDIN PROSTANTHERAS PROTANOMALIES PROTANOMALOUS PROTOGALAXIES PROTOSPATAIRE PSALIGRAPHIES PSEUDOSCALARS PSYCHASTHENIA PSYCHIATRICAL PSYCHOANALYSE PSYCHOANALYST PSYCHOANALYZE PSYCHOMACHIAS PTERIDOMANIAS PTEROSAURIANS PUTANGITANGIS PYROTARTRATES QUADRAPHONICS QUADRAPHONIES QUADRAPLEGIAS QUADRAPLEGICS QUADRIPLEGIAS QUASIPARTICLE RADIOGRAPHERS RADIOGRAPHIES RADIOPACITIES RAPACIOUSNESS REACCEPTANCES READAPTATIONS REAPPEARANCES RECAPITALISED RECAPITALISES RECAPITALIZES RECAPITULATES RELANDSCAPING REPAGINATIONS REPATRIATIONS REPLANTATIONS RESPIRATIONAL RHAPSODICALLY SALESMANSHIPS SANDPAINTINGS SANDPAPERIEST SANDPAPERINGS SARCOPHAGUSES SARSAPARILLAS SATANOPHANIES SATANOPHOBIAS SCAPEGOATINGS SCAPEGOATISMS SCAPHOCEPHALI SCAPHOCEPHALY SCAPULIMANTIC SCAPULOMANTIC SCEUOPHYLACIA SCRAPERBOARDS SCRATCHPLATES SCROPHULARIAS SEMIPALMATION SEMIPARASITES SEMIPARASITIC SEPARABLENESS SEPARATIONISM SEPARATIONIST SIALOGRAPHIES SOMATOPLASTIC SOMATOPLEURAL SPADICIFLORAL SPASMODICALLY SPATTERDASHES SPEARCARRIERS SPECTACULARLY SPERMATICALLY SPERMATOBLAST SPERMATOCIDAL SPERMATOGONIA SPERMATORRHEA SPERMATOTHECA SPERMATOZOANS SPHACELATIONS SPREADABILITY STANDPATTISMS STAPHYLINIDAE STATESMANSHIP STEGANOGRAPHS STEGANOGRAPHY STOMATOPLASTY STRAPHANGINGS STRATIGRAPHER STRATIGRAPHIC SUBAPPEARANCE SUBLAPSARIANS SUBPARAGRAPHS SUFFRAGANSHIP SULFORAPHANES SULPHADIAZINE SUPERABUNDANT SUPERACCURATE SUPERANNUABLE SUPERANNUATED SUPERANNUATES SUPERNATATION SUPERNATIONAL SUPERNATURALS SUPERSALESMAN SUPERSATURATE SUPPLANTATION SUPRACHIASMIC SUPRANATIONAL SUPRARATIONAL SUPRATEMPORAL SYCOPHANTICAL SYLLABOGRAPHY SYMPATHETICAL SYMPATRICALLY SYMPTOMATICAL SYNAPOSEMATIC TACHYGRAPHERS TACHYGRAPHIES TACHYGRAPHIST TACHYPHRASIAS TACHYPHYLAXES TACHYPHYLAXIS TAPSALTEERIES TERATOPHOBIAS THORACOPLASTY TRANSCRIPTASE TRANSPARENCES TRANSPARENTLY TRANSPERSONAL TRANSPIRATION TRANSPIRATORY TRANSPLANTERS TRANSPLANTING TRANSPORTABLE TRANSPORTANCE TRYPAFLAVINES TRYPARSAMIDES ULTRAPHYSICAL UNACCEPTANCES UNAPOSTOLICAL UNCAPITALISED UNCOMPLAISANT UNPARASITISED UNPARASITIZED UNPERSUADABLE UNPLEASURABLE UNPLEASURABLY UNPOLARISABLE UNPURCHASABLE UNSPECTACULAR UNSURPASSABLE UNSURPASSABLY UNTRANSPARENT UPPERCLASSMAN URANOGRAPHERS URANOGRAPHIES URANOGRAPHIST URANOPLASTIES VALPOLICELLAS VAPORISATIONS VAPORIZATIONS VIBRAHARPISTS WAPPENSHAWING WATERMANSHIPS XIPHIPLASTRAL YACHTSMANSHIP ZOOSPORANGIAL ZYGAPOPHYSEAL ZYGAPOPHYSIAL